Crude and adjusted odds ratios for P gingivalis IgG and memory tests. Immediate verbal memory/registration (impaired <5/9 possible points)
| P gingivalis IgG (EU) | Models for immediate verbal memory OR (95% CI) | |||
| Crude | Model 1 | Model 2 | Model 3 | |
| (⩽57) [reference] | 1 | 1 | 1 | 1 |
| (58–65) | 0.99 (0.34–2.86) | 0.90 (0.29–2.80) | 0.57 (0.18–1.83) | 1.01 (0.38–2.67) |
| (66–119) | 1.63 (0.48–5.54) | 1.44 (0.38–5.42) | 1.17 (0.29–4.73) | 1.99 (0.57–6.98) |
| (>119) | 2.14 (0.62–7.39) | 2.02 (0.54–7.63) | 1.62 (0.39–6.80) | 2.57 (0.75–8.85) |
| p Trend | 0.11 | 0.21 | 0.04 | 0.07 |
Crude, association of P gingivalis IgG and cognitive test; Model 1, additionally adjusted for age, sex and education; Model 2, additionally adjusted for race, insurance and income; Model 3, additionally adjusted for history of diabetes mellitus, hypertension, smoking, congestive heart failure, coronary artery disease, stroke and C reactive protein.